相对飞机而言，高铁列车的突出优势在于准时，因为基本不受天气或交通管制的影响。
Compared with the airplane, the outstanding advantage of the CRH train is punctuality, because it is basically not affected by weather or traffic control.
相对飞机而言，高铁列车的突出优势在于准时，因为基本不受天气或者交通管制的影响。
Compared with planes, the outstanding advantage of high-speed trains is their punctuality, for it is scarcely influenced by weather conditions or traffic control.
许多人认为，空中交通管制系统是由一排坐在美国机场雷达屏幕前的管制员组成的，他们告诉到达和离开的航班该做什么。
Many people think that ATC consists of a row of controllers sitting in front of their radar screens at the nation's airports, telling arriving and departing traffic what to do.
该协会还表示，必须提高机组人员和空中交通管制员的培训标准，因为空中交通越来越拥挤。
The association also said that standards of training must be raised among flight crews and air traffic controllers as the sky has become ever more crowded.
显然，该地区有一些低空云层，但主要是飞行员和空中交通管制员之间的沟通失误。
Apparently, there were some low clouds in the area, but mostly it was just miscommunication between the pilots and the air traffic controllers.
无交通管制的空域被定为等级F，而低于海拔5490米、不在机场附近的管制空域是等级 E。
Uncontrolled airspace is designated Class F, while controlled airspace below 5,490m above sea level and not in the vicinity of an airport is Class E.
首先，空中交通管制几乎覆盖了整个美国。
需要持有明确的空中交通管制许可才能进入B类空域，如接近一个大都会机场。
To enter Class B airspace, such as an approach to a major metropolitan airport, an explicit ATC clearance is required.
例如，VFR飞行员进入C类空域所要做的就是与空中交通管制建立双向无线电联系。
For example, all a VFR pilot has to do to enter Class C airspace is establish two-way radio contact with ATC.
第一个出现类似现在的航空交通管制的地方是纽约市，很快，其它大城市也开始效仿。
The first region to have something approximating today's ATC was New York City, with other major metropolitan areas following soon after.
尽管飞行员必须继续遵守有关视觉飞行规则的所有规定，但无需获得空中交通管制的明确进入许可。
No explicit permission from ATC to enter is needed, although the pilot must continue to obey all regulations governing VFR flight.
然而，这种纯粹的视觉系统在恶劣天气下毫无用处，到了20世纪30年代，无线电通信开始用于空中交通管制。
However, this purely visual system was useless in bad weather, and, by the 1930s, radio communication was coming into use for ATC.
在20世纪40年代，空中交通管制中心能够而且确实利用了第二次世界大战中新研制的雷达和改进的无线电通讯，但是这个系统还处于初级阶段。
In the 1940s, ATC centres could and did take advantage of the newly developed radar and improved radio communication brought about by the Second World War, but the system remained rudimentary.
4月8日，武汉市解除离市交通管制。
1月23日，武汉宣布实施出市临时交通管制。
Jan 23: Wuhan declared temporary outbound (向外的) traffic restrictions.
我们将继续制造新型、复杂的飞机和空中交通管制系统，以保证它们能够符合更高的安全水平。
We will continue to validate new, complex aircraft and air traffic control systems to ensure that they meet extremely high safety levels.
民用计算机基础设施包括计算机网络，比如可能控制着空中交通管制系统或者供水系统。
The civilian computer infrastructure would include the networks that control an air traffic control system or a water supply, for example.
交通管制的终极目标是“绿色波浪”，也就是那些能让车辆队伍流畅的穿过一个接一个的交叉路口的，啵，啵，啵作响的一路绿灯。
An ultimate goal in traffic regulation is "the green wave," the bam, bam, bam of greens that allows platoons of vehicles to move smoothly through intersection after intersection.
奥运交通管制和安保措施，加之从电视上看比赛的诱惑，反正也似乎会似乎都以不同的方式把人们留在家中。
Olympic traffic controls and security measures, as well as the lure of sport on television, seem to be keeping people at home anyway.
它的位置几乎恰好处于南美洲和非洲的中间，起着空中交通管制的中转站的作用。
Almost halfway between South America and Africa, it serves as a switching station for air traffic control.
由于具有精确的定位和授时能力，该系统还广泛的支持民用、科研以及商业应用，从空中交通管制到互联网。
The worldwide system also supports a wide range of civil, scientific and commercial functions - from air traffic control to the Internet - with precision location and timing information.
例如，构建空中交通管制系统的软件需要某些工作产品以确保多重可靠性检查，满足可调整性等等。
Those who build software for air traffic control systems, for example, need certain work products to ensure multiple reliability checks, regulatory compliance, and so forth.
在驾驶舱内，飞行员在和巴西方面的空中交通管制部门交谈，报告航班高度和无线电频率。
In the cockpit, the pilots chattered with Brazilian air traffic control, calling out altitude and radio frequencies.
在空中飞行员按照数以千计的虚拟点构成的路径驾驶飞机，其中每个点都有自己的名字，这样空中交通管制才能告诉我们到哪里，怎么走。
There are thousands of virtual points in the sky that pilots follow on their route, each with unique names so the air-traffic controllers can tell us where to go and how to get there.
结果关于航天飞机解体的情况一份雷达记录也没有——雷达只记录了那些从东德克萨斯州上空飘落，并最终进入空中交通管制范围内的金属雨。
As a result, no radar record of the breakup exists-only of the metal rain that drifted down over East Texas, and eventually came into the view of air-traffic control.
这份新合同使空中交通管制设备的运行维护更趋合理、单一、灵活。
This new contract rationalises operational maintenance services for the Air Traffic Control equipment into a single and flexible performance based arrangement.
美国仅有一个空中交通管制服务提供商，然而，欧洲有令人难以想象的34个。
Where America has a single provider of air-traffic control services, Europe has a mind-boggling 34.
北京打算在奥运会期间要求实行类似或者规模更大的交通管制。
Beijing intends to require similar or greater traffic reductions during the games.
如若发电站、精炼厂、银行和空中交通管制系统被迫瘫痪，人们便性命难保。
If power stations, refineries, Banks and air-traffic-control systems were brought down, people would lose their lives.
如若发电站、精炼厂、银行和空中交通管制系统被迫瘫痪，人们便性命难保。
If power stations, refineries, Banks and air-traffic-control systems were brought down, people would lose their lives.
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